Question about antenna noise filters

[Cartrivision1]

Hi, I recently bought a Sony head unit that has shortwave radio
coverage. It has fairly good sensitivity using the car's power
antenna, but on one channel that I like that broadcasts in the day
time, I pick up a lot of noise from the engine, power accessories,
etc. I notice that when the engine is off the reception is just fine,
but with the motor running and fans running and such the noise pretty
much drowns out the reception.

I thought about adding some kind of noise filter but not sure how
these are installed. Are they installed inline at the antenna, or at
the head unit? Also, I did talk to one local car stereo place and
they said to check the ground wire. I am pretty sure that the guy who
installed the deck, which is aftermarket, probably just used the
ground connection from the stock radio. BTW, radio reception on AM/FM
is just fine.

Any help would be appreciated.



thanks,
CTV

[MOSFET]

Just to be clear here, you are saying you bought an aftermarket Sony HU
(head unit) that as well as having CD (perhaps cassette) and AM/FM, it also
has shortwave capability. Correct? It is not a seperate unit.

If so, are you also using any type of aftermarket amplifier to boost the
signal before it goes to your speakers? If so, that is where I would look
first (a ground loop).

If not, you may be picking up EMI (Electromagnetic Interference) from the
various accesories in your car. Car's produce A LOT of EMI especially from
the alternator.

Does it make this noise if you are just playing AM/FM or CD? If not, the
EMI problem is more than likely the problem.

You MAY want to try a larger ground wire from your HU or try different
grounding spots, but I'm not sure this would help.

Your best bet might be a filter between your antenna and your HU. I believe
Radio Shack makes just such a device and it may solve the problem. If not,
you can always take it back.

MOSFET
"Cartrivision1" > wrote in message
oups.com...
> Hi, I recently bought a Sony head unit that has shortwave radio
> coverage. It has fairly good sensitivity using the car's power
> antenna, but on one channel that I like that broadcasts in the day
> time, I pick up a lot of noise from the engine, power accessories,
> etc. I notice that when the engine is off the reception is just fine,
> but with the motor running and fans running and such the noise pretty
> much drowns out the reception.
>
> I thought about adding some kind of noise filter but not sure how
> these are installed. Are they installed inline at the antenna, or at
> the head unit? Also, I did talk to one local car stereo place and
> they said to check the ground wire. I am pretty sure that the guy who
> installed the deck, which is aftermarket, probably just used the
> ground connection from the stock radio. BTW, radio reception on AM/FM
> is just fine.
>
> Any help would be appreciated.
>
>
>
> thanks,
> CTV
>
>

[Cartrivision1]

On Aug 5, 1:28 pm, "MOSFET" > wrote:
> Just to be clear here, you are saying you bought an aftermarket Sony HU
> (head unit) that as well as having CD (perhaps cassette) and AM/FM, it also
> has shortwave capability. Correct? It is not a seperate unit.
>
> If so, are you also using any type of aftermarket amplifier to boost the
> signal before it goes to your speakers? If so, that is where I would look
> first (a ground loop).
>
> If not, you may be picking up EMI (Electromagnetic Interference) from the
> various accesories in your car. Car's produce A LOT of EMI especially from
> the alternator.
>
> Does it make this noise if you are just playing AM/FM or CD? If not, the
> EMI problem is more than likely the problem.
>
> You MAY want to try a larger ground wire from your HU or try different
> grounding spots, but I'm not sure this would help.
>
> Your best bet might be a filter between your antenna and your HU. I believe
> Radio Shack makes just such a device and it may solve the problem. If not,
> you can always take it back.
>
> MOSFET"Cartrivision1" > wrote in message
>
> oups.com...
>
>
>
> > Hi, I recently bought a Sony head unit that has shortwave radio
> > coverage. It has fairly good sensitivity using the car's power
> > antenna, but on one channel that I like that broadcasts in the day
> > time, I pick up a lot of noise from the engine, power accessories,
> > etc. I notice that when the engine is off the reception is just fine,
> > but with the motor running and fans running and such the noise pretty
> > much drowns out the reception.
>
> > I thought about adding some kind of noise filter but not sure how
> > these are installed. Are they installed inline at the antenna, or at
> > the head unit? Also, I did talk to one local car stereo place and
> > they said to check the ground wire. I am pretty sure that the guy who
> > installed the deck, which is aftermarket, probably just used the
> > ground connection from the stock radio. BTW, radio reception on AM/FM
> > is just fine.
>
> > Any help would be appreciated.
>
> > thanks,
> > CTV- Hide quoted text -
>
> - Show quoted text -

Hi, thanks for the reply. I believe you are correct that it is EMI
because the reception is great with the ignition and accessories off.
And yes, it is a Sony head unit with shortwave coverage, no external
box of any kind. And no, I do not have a problem with noise on the
other radio sources such as cassette or AM/FM. Just on shortwave
which is very susceptible to outside electrical interference.



CTV

[Christopher \Torroid\ Ott]

"Cartrivision1" > wrote in message
oups.com...
> On Aug 5, 1:28 pm, "MOSFET" > wrote:
>> Just to be clear here, you are saying you bought an aftermarket Sony HU
>> (head unit) that as well as having CD (perhaps cassette) and AM/FM, it
>> also
>> has shortwave capability. Correct? It is not a seperate unit.
>>
>> If so, are you also using any type of aftermarket amplifier to boost the
>> signal before it goes to your speakers? If so, that is where I would
>> look
>> first (a ground loop).
>>
>> If not, you may be picking up EMI (Electromagnetic Interference) from the
>> various accesories in your car. Car's produce A LOT of EMI especially
>> from
>> the alternator.
>>
>> Does it make this noise if you are just playing AM/FM or CD? If not, the
>> EMI problem is more than likely the problem.
>>
>> You MAY want to try a larger ground wire from your HU or try different
>> grounding spots, but I'm not sure this would help.
>>
>> Your best bet might be a filter between your antenna and your HU. I
>> believe
>> Radio Shack makes just such a device and it may solve the problem. If
>> not,
>> you can always take it back.
>>
>> MOSFET"Cartrivision1" > wrote in message
>>
>> oups.com...
>>
>>
>>
>> > Hi, I recently bought a Sony head unit that has shortwave radio
>> > coverage. It has fairly good sensitivity using the car's power
>> > antenna, but on one channel that I like that broadcasts in the day
>> > time, I pick up a lot of noise from the engine, power accessories,
>> > etc. I notice that when the engine is off the reception is just fine,
>> > but with the motor running and fans running and such the noise pretty
>> > much drowns out the reception.
>>
>> > I thought about adding some kind of noise filter but not sure how
>> > these are installed. Are they installed inline at the antenna, or at
>> > the head unit? Also, I did talk to one local car stereo place and
>> > they said to check the ground wire. I am pretty sure that the guy who
>> > installed the deck, which is aftermarket, probably just used the
>> > ground connection from the stock radio. BTW, radio reception on AM/FM
>> > is just fine.
>>
>> > Any help would be appreciated.
>>
>> > thanks,
>> > CTV- Hide quoted text -
>>
>> - Show quoted text -
>
> Hi, thanks for the reply. I believe you are correct that it is EMI
> because the reception is great with the ignition and accessories off.
> And yes, it is a Sony head unit with shortwave coverage, no external
> box of any kind. And no, I do not have a problem with noise on the
> other radio sources such as cassette or AM/FM. Just on shortwave
> which is very susceptible to outside electrical interference.


You might have some luck with the folks over on rec.radio.shortwave
regarding how to protect the signal until it gets into the radio. It's
pretty obvious that the problem is EMI, finding which of the several sources
in the car and correcting it is a little more specialized. SW is really low
power and the signal is easy to overwhelm in a car.

Eddie Runner used to hang around here as well. I recall he was pretty active
in the ham radios and runs a car stereo shop in Texas of all Godforsaken
places. Maybe you can ping him for some info too. www.twfer.com or
www.installer.com, gotta warn you though, he's a little neurotic at times...

Chris

[Cartrivision1]

On Aug 5, 3:35 pm, "Christopher \"Torroid\" Ott" <spamtrap at
ottelectronics dot com> wrote:
> "Cartrivision1" > wrote in message
>
> oups.com...
>
>
>
>
>
> > On Aug 5, 1:28 pm, "MOSFET" > wrote:
> >> Just to be clear here, you are saying you bought an aftermarket Sony HU
> >> (head unit) that as well as having CD (perhaps cassette) and AM/FM, it
> >> also
> >> has shortwave capability. Correct? It is not a seperate unit.
>
> >> If so, are you also using any type of aftermarket amplifier to boost the
> >> signal before it goes to your speakers? If so, that is where I would
> >> look
> >> first (a ground loop).
>
> >> If not, you may be picking up EMI (Electromagnetic Interference) from the
> >> various accesories in your car. Car's produce A LOT of EMI especially
> >> from
> >> the alternator.
>
> >> Does it make this noise if you are just playing AM/FM or CD? If not, the
> >> EMI problem is more than likely the problem.
>
> >> You MAY want to try a larger ground wire from your HU or try different
> >> grounding spots, but I'm not sure this would help.
>
> >> Your best bet might be a filter between your antenna and your HU. I
> >> believe
> >> Radio Shack makes just such a device and it may solve the problem. If
> >> not,
> >> you can always take it back.
>
> >> MOSFET"Cartrivision1" > wrote in message
>
> oups.com...
>
> >> > Hi, I recently bought a Sony head unit that has shortwave radio
> >> > coverage. It has fairly good sensitivity using the car's power
> >> > antenna, but on one channel that I like that broadcasts in the day
> >> > time, I pick up a lot of noise from the engine, power accessories,
> >> > etc. I notice that when the engine is off the reception is just fine,
> >> > but with the motor running and fans running and such the noise pretty
> >> > much drowns out the reception.
>
> >> > I thought about adding some kind of noise filter but not sure how
> >> > these are installed. Are they installed inline at the antenna, or at
> >> > the head unit? Also, I did talk to one local car stereo place and
> >> > they said to check the ground wire. I am pretty sure that the guy who
> >> > installed the deck, which is aftermarket, probably just used the
> >> > ground connection from the stock radio. BTW, radio reception on AM/FM
> >> > is just fine.
>
> >> > Any help would be appreciated.
>
> >> > thanks,
> >> > CTV- Hide quoted text -
>
> >> - Show quoted text -
>
> > Hi, thanks for the reply. I believe you are correct that it is EMI
> > because the reception is great with the ignition and accessories off.
> > And yes, it is a Sony head unit with shortwave coverage, no external
> > box of any kind. And no, I do not have a problem with noise on the
> > other radio sources such as cassette or AM/FM. Just on shortwave
> > which is very susceptible to outside electrical interference.
>
> You might have some luck with the folks over on rec.radio.shortwave
> regarding how to protect the signal until it gets into the radio. It's
> pretty obvious that the problem is EMI, finding which of the several sources
> in the car and correcting it is a little more specialized. SW is really low
> power and the signal is easy to overwhelm in a car.

Thanks for the advice. I went to Radio Shack and they no longer carry
the filter for the antenna. They did manage to sell me a ground loop
isolator for $16 though! The sales guy seemed to think that since it
was engine noise that was causing most of the problems that it would
be the best bet. I went home to connect it to the system when I
realized that I have a 4-channel system, and I only got one of them.
A question though........is it OK to connect it at the amplifier end
as opposed to the head unit to save myself having to yank out all of
the wires from the front of the dash?


thanks,
CTV

[MOSFET]

That Radio Shack guy was on crack.

I know the item you're reffering to and it goes inline between your HU and
amplifiers or signal processors, NOT SPEAKER CABLES.

TAKE IT BACK!!!! And then use Google to find someone who sells EMI filters
for antennas.

If your HU is not making this noise when playing the radio (AM/FM) or CD's,
CLEARLY it is an EMI problem through your antenna that is causing the
problem.

MOSFET


"Cartrivision1" > wrote in message
ps.com...
> On Aug 5, 3:35 pm, "Christopher \"Torroid\" Ott" <spamtrap at
> ottelectronics dot com> wrote:
> > "Cartrivision1" > wrote in message
> >
> > oups.com...
> >
> >
> >
> >
> >
> > > On Aug 5, 1:28 pm, "MOSFET" > wrote:
> > >> Just to be clear here, you are saying you bought an aftermarket Sony
HU
> > >> (head unit) that as well as having CD (perhaps cassette) and AM/FM,
it
> > >> also
> > >> has shortwave capability. Correct? It is not a seperate unit.
> >
> > >> If so, are you also using any type of aftermarket amplifier to boost
the
> > >> signal before it goes to your speakers? If so, that is where I would
> > >> look
> > >> first (a ground loop).
> >
> > >> If not, you may be picking up EMI (Electromagnetic Interference) from
the
> > >> various accesories in your car. Car's produce A LOT of EMI
especially
> > >> from
> > >> the alternator.
> >
> > >> Does it make this noise if you are just playing AM/FM or CD? If not,
the
> > >> EMI problem is more than likely the problem.
> >
> > >> You MAY want to try a larger ground wire from your HU or try
different
> > >> grounding spots, but I'm not sure this would help.
> >
> > >> Your best bet might be a filter between your antenna and your HU. I
> > >> believe
> > >> Radio Shack makes just such a device and it may solve the problem.
If
> > >> not,
> > >> you can always take it back.
> >
> > >> MOSFET"Cartrivision1" > wrote in message
> >
> > oups.com...
> >
> > >> > Hi, I recently bought a Sony head unit that has shortwave radio
> > >> > coverage. It has fairly good sensitivity using the car's power
> > >> > antenna, but on one channel that I like that broadcasts in the day
> > >> > time, I pick up a lot of noise from the engine, power accessories,
> > >> > etc. I notice that when the engine is off the reception is just
fine,
> > >> > but with the motor running and fans running and such the noise
pretty
> > >> > much drowns out the reception.
> >
> > >> > I thought about adding some kind of noise filter but not sure how
> > >> > these are installed. Are they installed inline at the antenna, or
at
> > >> > the head unit? Also, I did talk to one local car stereo place and
> > >> > they said to check the ground wire. I am pretty sure that the guy
who
> > >> > installed the deck, which is aftermarket, probably just used the
> > >> > ground connection from the stock radio. BTW, radio reception on
AM/FM
> > >> > is just fine.
> >
> > >> > Any help would be appreciated.
> >
> > >> > thanks,
> > >> > CTV- Hide quoted text -
> >
> > >> - Show quoted text -
> >
> > > Hi, thanks for the reply. I believe you are correct that it is EMI
> > > because the reception is great with the ignition and accessories off.
> > > And yes, it is a Sony head unit with shortwave coverage, no external
> > > box of any kind. And no, I do not have a problem with noise on the
> > > other radio sources such as cassette or AM/FM. Just on shortwave
> > > which is very susceptible to outside electrical interference.
> >
> > You might have some luck with the folks over on rec.radio.shortwave
> > regarding how to protect the signal until it gets into the radio. It's
> > pretty obvious that the problem is EMI, finding which of the several
sources
> > in the car and correcting it is a little more specialized. SW is really
low
> > power and the signal is easy to overwhelm in a car.
>
> Thanks for the advice. I went to Radio Shack and they no longer carry
> the filter for the antenna. They did manage to sell me a ground loop
> isolator for $16 though! The sales guy seemed to think that since it
> was engine noise that was causing most of the problems that it would
> be the best bet. I went home to connect it to the system when I
> realized that I have a 4-channel system, and I only got one of them.
> A question though........is it OK to connect it at the amplifier end
> as opposed to the head unit to save myself having to yank out all of
> the wires from the front of the dash?
>
>
> thanks,
> CTV
>
>

[Christopher \Torroid\ Ott]

"MOSFET" > wrote in message
m...
> That Radio Shack guy was on crack.
>
> I know the item you're reffering to and it goes inline between your HU and
> amplifiers or signal processors, NOT SPEAKER CABLES.
>
> TAKE IT BACK!!!! And then use Google to find someone who sells EMI
> filters
> for antennas.
>
> If your HU is not making this noise when playing the radio (AM/FM) or
> CD's,
> CLEARLY it is an EMI problem through your antenna that is causing the
> problem.
>
> MOSFET
>
>
> "Cartrivision1" > wrote in message
> ps.com...
>> On Aug 5, 3:35 pm, "Christopher \"Torroid\" Ott" <spamtrap at
>> ottelectronics dot com> wrote:
>> > "Cartrivision1" > wrote in message
>> >
>> > oups.com...
>> >
>> >
>> >
>> >
>> >
>> > > On Aug 5, 1:28 pm, "MOSFET" > wrote:
>> > >> Just to be clear here, you are saying you bought an aftermarket Sony
> HU
>> > >> (head unit) that as well as having CD (perhaps cassette) and AM/FM,
> it
>> > >> also
>> > >> has shortwave capability. Correct? It is not a seperate unit.
>> >
>> > >> If so, are you also using any type of aftermarket amplifier to
>> > >> boost
> the
>> > >> signal before it goes to your speakers? If so, that is where I
>> > >> would
>> > >> look
>> > >> first (a ground loop).
>> >
>> > >> If not, you may be picking up EMI (Electromagnetic Interference)
>> > >> from
> the
>> > >> various accesories in your car. Car's produce A LOT of EMI
> especially
>> > >> from
>> > >> the alternator.
>> >
>> > >> Does it make this noise if you are just playing AM/FM or CD? If
>> > >> not,
> the
>> > >> EMI problem is more than likely the problem.
>> >
>> > >> You MAY want to try a larger ground wire from your HU or try
> different
>> > >> grounding spots, but I'm not sure this would help.
>> >
>> > >> Your best bet might be a filter between your antenna and your HU. I
>> > >> believe
>> > >> Radio Shack makes just such a device and it may solve the problem.
> If
>> > >> not,
>> > >> you can always take it back.
>> >
>> > >> MOSFET"Cartrivision1" > wrote in message
>> >
>> > oups.com...
>> >
>> > >> > Hi, I recently bought a Sony head unit that has shortwave radio
>> > >> > coverage. It has fairly good sensitivity using the car's power
>> > >> > antenna, but on one channel that I like that broadcasts in the day
>> > >> > time, I pick up a lot of noise from the engine, power accessories,
>> > >> > etc. I notice that when the engine is off the reception is just
> fine,
>> > >> > but with the motor running and fans running and such the noise
> pretty
>> > >> > much drowns out the reception.
>> >
>> > >> > I thought about adding some kind of noise filter but not sure how
>> > >> > these are installed. Are they installed inline at the antenna, or
> at
>> > >> > the head unit? Also, I did talk to one local car stereo place and
>> > >> > they said to check the ground wire. I am pretty sure that the guy
> who
>> > >> > installed the deck, which is aftermarket, probably just used the
>> > >> > ground connection from the stock radio. BTW, radio reception on
> AM/FM
>> > >> > is just fine.
>> >
>> > >> > Any help would be appreciated.
>> >
>> > >> > thanks,
>> > >> > CTV- Hide quoted text -
>> >
>> > >> - Show quoted text -
>> >
>> > > Hi, thanks for the reply. I believe you are correct that it is EMI
>> > > because the reception is great with the ignition and accessories off.
>> > > And yes, it is a Sony head unit with shortwave coverage, no external
>> > > box of any kind. And no, I do not have a problem with noise on the
>> > > other radio sources such as cassette or AM/FM. Just on shortwave
>> > > which is very susceptible to outside electrical interference.
>> >
>> > You might have some luck with the folks over on rec.radio.shortwave
>> > regarding how to protect the signal until it gets into the radio. It's
>> > pretty obvious that the problem is EMI, finding which of the several
> sources
>> > in the car and correcting it is a little more specialized. SW is really
> low
>> > power and the signal is easy to overwhelm in a car.
>>
>> Thanks for the advice. I went to Radio Shack and they no longer carry
>> the filter for the antenna. They did manage to sell me a ground loop
>> isolator for $16 though! The sales guy seemed to think that since it
>> was engine noise that was causing most of the problems that it would
>> be the best bet. I went home to connect it to the system when I
>> realized that I have a 4-channel system, and I only got one of them.
>> A question though........is it OK to connect it at the amplifier end
>> as opposed to the head unit to save myself having to yank out all of
>> the wires from the front of the dash?
>>
>>
>> thanks,
>> CTV


Yeah, I agree (see above), that ground loop isolator isn't going to do
anything for your problem. The interference is either getting in from the
antenna or the ground of the head unit. SW signals have to be amplified alot
more than the AM/FM or CD which opens poor grounding up as a real
possibility. Even if nothing else has noise the SW receiver is still
susceptible because there's so much amplification.

So you need to focus your attention first on getting a good, short chassis
ground on your head unit. Do not use factory wiring for this. Try not to
wiretie any other wires to the ground line either. If you still have noise
after this, you'll need to consult with some HAM guys in the other groups
for possible filters for your antenna. Or even an alternate antenna if
that's an option.

Chris

[Cartrivision1]

On Aug 5, 10:21 pm, "MOSFET" > wrote:
> That Radio Shack guy was on crack.
>
> I know the item you're reffering to and it goes inline between your HU and
> amplifiers or signal processors, NOT SPEAKER CABLES.
>
> TAKE IT BACK!!!! And then use Google to find someone who sells EMI filters
> for antennas.

Well to give the Rat Shack sales guy some credit I did not tell him
that I was getting electrical interference only on SW, so he probably
thought he was giving me good advice. I did find some antenna filters
on Ebay that might do the trick. One looks as if it attaches at the
radio end and one looks like it might just plug in inline at the
antenna:

http://cgi.ebay.com/AI-CAR-STEREO-Antenna-Noise-Filter-New-2005_W0QQitemZ5774400985QQihZ008QQcategoryZ50553QQ rdZ1QQssPageNameZWD1VQQcmdZViewItem

http://cgi.ebay.com/Antenna-Noise-Filter_W0QQitemZ9502409175QQihZ007QQcategoryZ88433 QQrdZ1QQssPageNameZWD1VQQcmdZViewItem


I did notice that later in the day when the signal was stronger that
the EMI was not too bad but it was noticeable. I figure if I can
spend under $20 to remedy it that it would be a good investment.



CTV

[MOSFET]

That sounds like it might do the trick. The problem though with buying
online is that if it doesn't work, it's more difficult to return. Perhaps
there is a shop near you that specializes in CB radios or SW radios or even
Walmart has a large selection of car audio accesories. You MAY want to try
looking (or making phone calls) to places near your home so if it doesn't
work you can easily return it. I don't think antenna EMI filters are that
obscure an item. In fact, maybe ANOTHER Radio Shack might still have one.

MOSFET

"Cartrivision1" > wrote in message
ups.com...
> On Aug 5, 10:21 pm, "MOSFET" > wrote:
> > That Radio Shack guy was on crack.
> >
> > I know the item you're reffering to and it goes inline between your HU
and
> > amplifiers or signal processors, NOT SPEAKER CABLES.
> >
> > TAKE IT BACK!!!! And then use Google to find someone who sells EMI
filters
> > for antennas.
>
> Well to give the Rat Shack sales guy some credit I did not tell him
> that I was getting electrical interference only on SW, so he probably
> thought he was giving me good advice. I did find some antenna filters
> on Ebay that might do the trick. One looks as if it attaches at the
> radio end and one looks like it might just plug in inline at the
> antenna:
>
>
http://cgi.ebay.com/AI-CAR-STEREO-Antenna-Noise-Filter-New-2005_W0QQitemZ5774400985QQihZ008QQcategoryZ50553QQ rdZ1QQssPageNameZWD1VQQcmdZViewItem
>
>
http://cgi.ebay.com/Antenna-Noise-Filter_W0QQitemZ9502409175QQihZ007QQcategoryZ88433 QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
>
>
> I did notice that later in the day when the signal was stronger that
> the EMI was not too bad but it was noticeable. I figure if I can
> spend under $20 to remedy it that it would be a good investment.
>
>
>
> CTV
>
>

[Richard[_3_]]

Radio Shack is out of the radio business. OK, them have some XP type parts,
but conventional car radio parts have been pulled. Guess the suits never
heard of HD radio and the possible market for radio accessaries, etc. This
company is now a follower not a leader. Very sad.

Richard

[GregS]

In article >, "Richard" > wrote:
>Radio Shack is out of the radio business. OK, them have some XP type parts,
>but conventional car radio parts have been pulled. Guess the suits never
>heard of HD radio and the possible market for radio accessaries, etc. This
>company is now a follower not a leader. Very sad.

Seems like I owned a RS radio or two in my day. There is
no filter for an antenna. There are bandpass filters, but
it has no effect on the signal on AM broadcast. Filtering is on the power.
When you have problems, they can be severe. I had a 63 Ford, black, white top
convertable that was terrible. It had a lot of enging noise evem on 2 meter
FM. I fixed my problem, I sold the car. It was a looker, but i owned it for a
year, nothing but problems. Black Ford, red interior, white top. A couple
years after I sold it, I found it in a private junkyard, sitting up in the
field.

greg

[GregS]

In article >, (GregS) wrote:
>In article >, "Richard"
> > wrote:
>>Radio Shack is out of the radio business. OK, them have some XP type parts,
>>but conventional car radio parts have been pulled. Guess the suits never
>>heard of HD radio and the possible market for radio accessaries, etc. This
>>company is now a follower not a leader. Very sad.
>
>Seems like I owned a RS radio or two in my day. There is
>no filter for an antenna. There are bandpass filters, but
>it has no effect on the signal on AM broadcast. Filtering is on the power.
>When you have problems, they can be severe. I had a 63 Ford, black, white top
>convertable that was terrible. It had a lot of enging noise evem on 2 meter
>FM. I fixed my problem, I sold the car. It was a looker, but i owned it for a
>year, nothing but problems. Black Ford, red interior, white top. A couple
>years after I sold it, I found it in a private junkyard, sitting up in the
>field.

I didn't first spot that car in the field. My brother spotted it. how did he
know it was mine? You could easily see the keyhole I made on the left front
fender, for the motor driven siren, for the alarm. Thats what you used from JC
Whitney back in 1971. Yep, it was loud.

greg